Rarely booting up (Physical drop damage)
I have recently purchased a damaged Iphone 8, which wasn’t supposed to turn on. I noticed that the battery connection was bad, so I replaced it. The phone automatically attempted to turn on several times with approximately 30 seconds to 1 minute apart, until it successfully boot up. When turned on, the phone works perfectly. The screen and the home button has been replaced (With the home button not being functional of course).
If anyone have any advice how to investigate further on the logic board or any solution on the problem, it’s much appreciated.
Thanks in advance,